Oilfield API Certified Double-Acting Fully Hydraulic Drilling Jar for Drilling Operation

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: QYSZ
• Manufacturing Process: CNC Milling
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Od mm(Inch): 121(4 3/4)--203(8)/197(7 3/4)
• ID mm(Inch): 50.8(2)--71.4(2 13/16)
• Max Working Load(kN): 6650
• Max Working Torque(kN·m): 35
• Overall Length mm(FT): 7431(24.4)
• Connection Type: Nc Reg
• Transport Package: Wooden Box
• Trademark: YCPT
• Origin: China
• HS Code: 8431431000
• Production Capacity: 5000piece/Year
• Package Size: 150.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 50.000kg

Product Description

API Certified Double-Acting Fully Hydraulic Drilling Jar for Drilling Operation
 

Product Description

  We designed every aspect of this double-acting hydraulic drilling jar to withstand the rigors and long hours of challenging applications. Featuring an extra-long stroke length for exceptional impact and impulse forces during jarring operations, the Double-Acting Fully Hydraulic Drilling Jar  offers infinitely variable trip loads up to the maximum rating of the tool. Only a minimal load is required in both the up and down jarring directions, which is crucial in directional, horizontal, and extended-reach wellbores. This makes the jar an ideal solution for modern drilling operations.

  (The drilling jar is a double acting jar) This drilling jar is designed to deliver hydraulic delay when jarring in the up direction, and mechanical release when jarring in the down direction. It provides excellent functional stability and strong jarring forces in both jarring direction. It is used to free stuck drill string components and is recommended for directional/deep wells drilling application.

Working principle

• Up Jarring

Lower the drill stem to ensure that drilling jar is closed completely (in locking position). Up jarring is achieved by slowly increasing the lifting force on the drill stem, until there is sufficient pull force to overcome the spring resistance and initial hydraulic time delay. During the time delay, the overpull at surface can  be adjusted to vary the desired impact force. When the mandrel reaches the trigger position, there is a sudden release in resistance, the elastic potential energy stored within the drill string will be transmitted to forward up jarring impact energy. After impact, apply a downward force sufficient to close jar in locking position, then repeat the jarring cycle as required.

• Down Jarring

Lift and lower the drill stem to ensure that the drilling jar is closed completely (in locking position). Down Jarring is achieved by applying sufficient downward force to compress the spring and store elastic potential energy. When the pressure of the jar is greater than the desired unlocking force, the grapple will slide away from the mandrel to release the locking, performing down jarring action.  Repeat the procedures to produce continuous down jarring action. 
 

 

Product Parameters

 

Model	QYSZ121B	QYSZ159C	QYSZ165B	QYSZ172C	QYSZ178B	QYSZ203B	QYSZ241
Product Code	1808000	1810000	1811000	1812000	1813000	1815000	1817000
O.D. (mm)	121	159	165	172	178	203	241
I.D. (mm)	50.8	69	69	69	69	76.2	76.2
API Connection	NC38	NC46	NC50	NC50	NC50	6 5/8 REG	7 5/8 REG
Overall Length (mm)	9100	9450	9450	9450	8890	9700	9700
Total Weight (kg)	530	980	1020	1110	1290	1660	2400
Up Jarring Free Stroke (mm)	127	190	190	190	190	190	190
Down Jarring Free Stroke (mm)	165	190	190	190	190	190	190
Max. Up Jarring Force (kN)	350	700	700	700	800	1000	1250
Max. Down Jarring Force (kN)	200	350	350	350	400	500	650
Max. Tensile Load (kN)	1500	3750	3750	3750	4650	6650	7350
Working Pull Force (kN)	1000	2000	2000	2000	2400	2800	3500
Max. Torque Load (kN•m)	18	75	75	75	91	133	180
Working Torque (kN•m)	10	25	25	25	30	35	40
Pump Area (cm²)	18	26	26	26	51	58	78

 

Packaging & Shipping

Company Profile

Shandong Yacheng Petroleum Technology Co., Ltd.(YCPT) was established in 2016 while the mother company Dongying Xincheng Petroleum Technology was founded since 2003, and located at the second largest oilfield of China-Shengli Oilfield in Dongying city, which is famous as "oil city" in China. In domestic, we are first class supplier in vendor list of CNPC, CNOOC, and member of CCOIC,CCPIT and so on. 

The company is committed to develop, manufacture and supply of oilfield equipment, like oil and gas drilling rig equipment and spares, handling tools like hydraulic power tong, elevator,pneumatic spider, mud pump with spares, BOP equipment, Gate valve, manifold and swivel joint,etc. 

We have established a complete quality control system, all products& equipment manufactured as per international standard ISO 9001 and API standard.

 

FAQ

1.About packing:

plywood case,cartons or pallets

2.Terms of payment:

We accept T/T,L/C,Western union,Papal

3.Terms of shipment:

About 30 days after receiving the advance payment or according to bot parties agreement

4.Ports of shipment:

Tianjin,Qingdao,Shanghai and other locations requested by customers .by sea ,air or train

5.Guarantee:

One year since delivery.

6.Inspection:

100% testing before delivery

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